From 043b78c8782aafc4f05058d70b60b0bd8fb5f888 Mon Sep 17 00:00:00 2001
From: Mika Havela <mika.havela@gmail.com>
Date: Thu, 9 Jul 2009 15:25:49 +0000
Subject: Inform the user if a graph-file is broken

---
 rrdtool-viewgraph-popup.lsp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/rrdtool-viewgraph-popup.lsp b/rrdtool-viewgraph-popup.lsp
index b75085e..d32892a 100644
--- a/rrdtool-viewgraph-popup.lsp
+++ b/rrdtool-viewgraph-popup.lsp
@@ -9,6 +9,13 @@ io.write(html.cfe_unpack(data))
 io.write("</span>")
 --]]
 %>
+<% if (data.width) then %>
 <P><%= data.descr %></P>
 <IMG SRC='<%= data.output %>' width='<%= data.graph.width or data.option.width %>' height='<%= data.graph.height or data.option.height %>'>
-
+<% else %>
+<H1>No valid output available!</H1>
+<P>Please check if your syntax is right.<BR>
+Read http://oss.oetiker.ch/rrdtool/doc/rrdgraph.en.html for help.</P>
+<HR>
+<P><% io.write(tostring(data.value)) %></P>
+<% end %>
-- 
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